Plate XXVII. Nestling Prairie Horned Larks of Nest No. 7—continued. 
Two young seventh day, one sixth day, May 2, 1926. The 
p 
juvenile feathers of the seventh day birds are unsheathing. 
Fig. 2. Two young eighth day, one seventh, May 3, 1926. Almost 
t 
shed and the nestling changes ies in aspect. The seventh 
day bird is pushed deeper into the rear of the nest. 
